kernel: netfilter: nf_conntrack_dccp: incorrect skb_header_pointer API usages
Published Mar 24, 2014
10.0
HIGHCVSS 2.0
EPSS 10.38%
Description
net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a DCCP packet that triggers a call to the (1) dccp_new, (2) dccp_packet, or (3) dccp_error function.
Affected products
No data.
Configuration 1
- < 3.2.57
- ≥ 3.3 · < 3.4.86
- ≥ 3.5 · < 3.10.36
- ≥ 3.11 · < 3.12.17
- ≥ 3.13.0 · < 3.13.9
Configuration 2
- 10.04
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.17.1.el6
Fixed · RHSA-2014:0475
Red Hat Enterprise Linux 6.2 Advanced Update Support
kernel-0:2.6.32-220.51.1.el6
Fixed · RHSA-2014:0520
Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only
kernel-0:2.6.32-279.46.1.el6
Fixed · RHSA-2014:0593
Red Hat Enterprise Linux 6.4 Extended Update Support
kernel-0:2.6.32-358.44.1.el6
Fixed · RHSA-2014:0634
Red Hat Enterprise MRG 2
kernel-rt-0:3.10.33-rt32.33.el6rt
Fixed · RHSA-2014:0439
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-431.17.1.el6 | Fixed | RHSA-2014:0475 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | kernel-0:2.6.32-220.51.1.el6 | Fixed | RHSA-2014:0520 |
| Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only | kernel-0:2.6.32-279.46.1.el6 | Fixed | RHSA-2014:0593 |
| Red Hat Enterprise Linux 6.4 Extended Update Support | kernel-0:2.6.32-358.44.1.el6 | Fixed | RHSA-2014:0634 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.10.33-rt32.33.el6rt | Fixed | RHSA-2014:0439 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.38% (0.10385) | 95.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.38% (0.10385) | 95.12th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.75% (0.03748) | 86.94th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.27% (0.05273) | 82.97th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.75% (0.03748) | 87.23th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.60% (0.09601) | 94.77th | v3 (v2023.03.01) |
| Sep 18, 2023 | 7.47% (0.07473) | 93.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.82% (0.07820) | 93.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.54% (0.07544) | 92.83th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.54% (0.07544) | 92.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.54% (0.07544) | 81.06th | v2 (v2022.01.01) |
References (14)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92 x_refsource_CONFIRM
- http://secunia.com/advisories/57446 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://twitter.com/grsecurity/statuses/445496197399461888 x_refsource_MISCBroken Link
- http://www.openwall.com/lists/oss-security/2014/03/17/7 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/66279 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1029945 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2173-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2174-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-2523 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1077343 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/91910 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-2523
- https://www.cve.org/CVERecord?id=CVE-2014-2523
Change history (0)
No recorded changes yet.